Moving "star" sighted over McKinney Texas at 20:30 moving from the northwest to the southwest.

At about 8:30 PM US Central Time I observed from my backyard what appeared to be a moving star moving across the sky from the northwest to the southwest over a duration of about two to three minutes in McKinney, TX. The object in question appeared to be a white light whose intensity matches that of a bright star. The object moved relatively fast however not so fast that this factor in and of itself made me suspect that what I observed might be of unknown origins. The most significant detail of this experience was the absence of any blinking or otherwise red/green lights on the sides of the object as would identify a passenger jet. Furthermore the object made no noise yet it flew at an altitude that seemed to be characteristic of that of a plane that might be leaving or landing at DFW International Airport (relatively low). As the object flew from the northwest to the southwest it became smaller and smaller and dimmer and dimmer eventually to the point that I could no longer see the object in the southwestern sky. The object seemed to maintain a relatively constant speed throughout the sighting and flew in more or less a straight line. I would also like to add that McKinney has an airport that is used primarily for smaller personal/privet aircrafts. My mother also witnessed the object with me and see believes she saw a second moving object in the west that matched the description of the first, however, she lost sight of the object and was only able to watch it for a few seconds.